23.65% is the change from 520 to 643
Calculation steps:
[( 643 - 520 ) ÷ 520] x 100 = 23.65%
Formula
Percentage change = [(643 - 520) / 520] x 100
Subtract the new number by the original number
643 - 520 = 123
123 ÷ 520 = 0.23653846153846153
0.23653846153846153 x 100 = 23.65%